grindstone

noun

grind·​stone ˈgrīn(d)-ˌstōn 

1

: millstone sense 1

2

: a flat circular stone of natural sandstone that revolves on an axle and is used for grinding, shaping, or smoothing

Illustration of grindstone

• grindstone 2

Examples of grindstone in a Sentence

Recent Examples on the Web

After graduation, everyone faced facts and put their noses to the grindstone and learned hard truths. —Joseph O’Neill, The New Yorker, 23 Feb. 2025

So, what's a 'grindstone' anyway? Grindstones are thick disks of stone — often sandstone — used for grinding, sharpening, or polishing metal objects, or for milling grains into flour. —Jalen Williams, Detroit Free Press, 3 Jan. 2025

Those born under the sign are also not afraid to put their nose to the grindstone. —Olivia Munson, USA TODAY, 22 Dec. 2024

In a series of discoveries spanning about 23,000 years, archaeologists have found ceremonial arrangements of stones, broken stalactites, a small grindstone, patches of calcite powder, and quartz crystals. —science.org, 3 July 2024

Word History

First Known Use

13th century, in the meaning defined at sense 1

Phrases Containing grindstone

• keep one's nose to the grindstone
• one's nose is to the grindstone

Rhymes for grindstone

• alone
• atone
• backbone
• bemoan
• bluestone
• breastbone
• brownstone
• capstone
• cheekbone
• condone
• curbstone
• cyclone

Kids Definition

grindstone

noun

grind·​stone ˈgrīn-ˌstōn 

: a stone disk that turns on an axle and is used for grinding or sharpening